CanSat LEEM-UPM 20083
Data acquisition
• Data transmission at 4800 baud
• Data storage in EEPROM
• Real-time graphical display
• 4 new messages per second
• 12 historical messages per second
• Reliability
• Redundancy
• Robustness
• Precision
Data analysis Pressure vs Time
CanSat LEEM-UPM 20085
0 50 100 150 200 2500.84
0.85
0.86
0.87
0.88
0.89
0.9
0.91pressure
Data analysis Height vs Time
CanSat LEEM-UPM 20086
0 50 100 150 200 250-100
0
100
200
300
400
500
600height
Data analysis Temperature
CanSat LEEM-UPM 20087
-100 0 100 200 300 400 500 6000
5
10
15
20
25
30temperature vs height
0 50 100 150 200 2503
4
5
6
7
8
9
10
11temperature
CanSat LEEM-UPM 20088
Data analysisAcceleration vs Time
0 200 400 600 800 1000 1200 1400-15
-10
-5
0
5
10
15
20
25acceleration
CanSat LEEM-UPM 20089
Data analysisEvents Detection
0 200 400 600 800 1000 1200 1400-100
0
100
200
300
400
500
600height
-10 0 10 20 30 40 50 60 70 80
0
50
100
150
200
250
300
350
400
450
500
height
Parachute deployment (12s)
Bay deployment (11,75s)
Take off (0 s)
CanSat LEEM-UPM 200810
Data analysisEEPROM Data Recovery
0 50 100 150 200 250 300 350 4008400
8500
8600
8700
8800
8900
9000
9100pressure from EEPROM
Problem evaluation
CanSat LEEM-UPM 200812
• Bad quality in GPS reception
• Radio link error when the line of sight is lost (2km distance)
Conclusions
CanSat LEEM-UPM 200813
• Lossless transmission during the flight (6 minutes)
• Flight and landing at the estimated velocity
• Robustness in data acquisition
• High quality in barometric altitude, temperature and acceleration data
• Low quality in GPS sensor
• Easy to find due to color selection ;-)